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Finding the Fourth Proportional to 4,510.78, 6,766.32 and 1,223.94

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Solution

The fourth proportional to 4,510.78, 6,766.32 and 1,223.94 is: 1,835.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,510.78 : 6,766.32 = 1,223.94 : x
  2. Step 2: Convert to fraction form
    4,510.78/6,766.32 = 1,223.94/x
  3. Step 3: Cross multiply
    4,510.78x = 6,766.32 × 1,223.94
  4. Step 4: Simplify right side
    4,510.78x = 8,281,569.70
  5. Step 5: Solve for x
    x = 8,281,569.70/4,510.78
  6. Step 6: Final answer
    x = 1,835.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.